contrib/llvm/lib/Target/Mips/Mips16FrameLowering.h

   1 //===-- Mips16FrameLowering.h - Mips16 frame lowering  ----------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 //
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef MIPS16_FRAMEINFO_H
  15 #define MIPS16_FRAMEINFO_H
  16
  17 #include "MipsFrameLowering.h"
  18
  19 namespace llvm {
  20 class Mips16FrameLowering : public MipsFrameLowering {
  21 public:
  22   explicit Mips16FrameLowering(const MipsSubtarget &STI)
  23     : MipsFrameLowering(STI, 8) {}
  24
  25   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
  26   /// the function.
  27   void emitPrologue(MachineFunction &MF) const;
  28   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  29
  30   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  31                                      MachineBasicBlock &MBB,
  32                                      MachineBasicBlock::iterator I) const;
  33
  34   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
  35                                  MachineBasicBlock::iterator MI,
  36                                  const std::vector<CalleeSavedInfo> &CSI,
  37                                  const TargetRegisterInfo *TRI) const;
  38
  39   bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
  40                                    MachineBasicBlock::iterator MI,
  41                                    const std::vector<CalleeSavedInfo> &CSI,
  42                                    const TargetRegisterInfo *TRI) const;
  43
  44   bool hasReservedCallFrame(const MachineFunction &MF) const;
  45
  46   void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
  47                                             RegScavenger *RS) const;
  48 };
  49
  50 } // End llvm namespace
  51
  52 #endif